Clear PermissionStatus::m_service in pre-finalizer

third_party/WebKit/Source/modules/permissions/PermissionStatus.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/permissions/PermissionStatus.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "modules/EventTargetModulesNames.h"
@@ skipping 21 matching lines @@
   permissionStatus->startListening();
   return permissionStatus;
 }
 
 PermissionStatus::PermissionStatus(ExecutionContext* executionContext,
                                    MojoPermissionStatus status,
                                    MojoPermissionDescriptor descriptor)
     : ActiveScriptWrappable(this),
       ActiveDOMObject(executionContext),
       m_status(status),
-      m_descriptor(std::move(descriptor)) {}
+      m_descriptor(std::move(descriptor)) {
+  ThreadState::current()->registerPreFinalizer(this);
+}
 
-PermissionStatus::~PermissionStatus() {
+void PermissionStatus::dispose() {
   stopListening();
 }
 
 const AtomicString& PermissionStatus::interfaceName() const {
   return EventTargetNames::PermissionStatus;
 }
 
 ExecutionContext* PermissionStatus::getExecutionContext() const {
   return ActiveDOMObject::getExecutionContext();
 }
@@ skipping 55 matching lines @@
   ASSERT_NOT_REACHED();
   return "denied";
 }
 
 DEFINE_TRACE(PermissionStatus) {
   EventTargetWithInlineData::trace(visitor);
   ActiveDOMObject::trace(visitor);
 }
 
 }  // namespace blink